Christopher Boorse's Bio Statistical Theory (BST) defines health as the absence of disease, and disease as the adverse departure from normal species functioning. This paper presents a two-pronged problem for this account. First I demonstrate that, in order to accurately account for dynamic physiological functions, Boorse's account of normal function needs to be modified to index functions against situations. I then demonstrate that if functions are indexed against situations, the BST can no longer account for diseases that result from specific (...) environmental factors. The BST is impaled on either horn of this dilemma and therefore must be dismissed. (shrink)

Biological dysfunction is regarded, in many accounts, as necessary and perhaps sufficient for disease. But although disease is conceptualized as all-or-nothing, biological functions often differ by degree. A tension is created by attempting to use a continuous variable as the basis for a categorical definition, raising questions about how we are to pinpoint the boundary between health and disease. This is the line-drawing problem. In this paper, we show how the line-drawing problem arises within “dysfunction-requiring” accounts of disease, such as (...) those of Christopher Boorse and Jerome Wakefield. We then provide several detailed examples to establish that biological dysfunction cannot provide a boundary. We examine potential ways of resolving the line-drawing problem, either by dropping one of the claims that generates it, or by appealing to additional criteria. We argue that two of these options are plausible, and that each of these can be applied with regard to different diseases. (shrink)

I review the brain disease model of addiction promoted by medical, scientific, and clinical authorities in the US and elsewhere. I then show that the disease model is flawed because brain changes in addiction are similar to those generally observed when recurrent, highly motivated goal seeking results in the development of deep habits, Pavlovian learning, and prefrontal disengagement. This analysis relies on concepts of self-organization, neuroplasticity, personality development, and delay discounting. It also highlights neural and behavioral parallels between substance addictions, (...) behavioral addictions, normative compulsive behaviors, and falling in love. I note that the short duration of addictive rewards leads to negative emotions that accelerate the learning cycle, but cortical reconfiguration in recovery should also inform our understanding of addiction. I end by showing that the ethos of the disease model makes it difficult to reconcile with a developmental-learning orientation. (shrink)

Examining the naturalist and normativist concepts of health and disease this article starts with analysing the view of C. Boorse. It rejects Boorse's account of health as species-typical functioning, giving a critique of his view based on evolutionary theory of contemporary biology. Then it gives a short overview of the normativist theories of health, which can be objectivist and subjectivist theories. Rejecting the objectivist theories as philosophically untenable, it turns to the subjectivist theories of Gert and Culver, and to the (...) view of Nordenfelt. These theories give quite a good subjectivist account of health and disease, but they do not pay enough attention to the notion of the environment, without which it is impossible to define health and disease. Starting with their definitions but introducing the notion of “reasonable social norms”, the article arrives at the following definition of health: The healthier a physical or mental characteristic, process, reaction is, the more it makes it possible for the individual to adapt to reasonable social norms without pain and suffering, and the longer, and happier a life it will be able to ensure him in that society. (shrink)

Given recent advancements in CRISPR‐Cas9 powered genetic modification of gametes and embryos, both popular media and scientific articles are hailing CRISPR’s life‐saving, curative potential for people with serious monogenic diseases. But claims that CRISPR modification of gametes or embryos, a form of germline engineering, has therapeutic value are deeply mistaken. This article explains why reproductive uses of CRISPR, and germline engineering more generally, do not treat or save lives that would otherwise have a genetic disease. Reproductive uses of CRISPR create (...) healthy people whose existence is not inevitable in the first place. Creating healthy lives has distinct and lesser moral value from saving or curing lives that would otherwise have genetic disease. The real value in reproductive uses of CRISPR is in helping a very limited population of people have healthy, genetically related children. This diminished value cannot compete with the concerns in opposition to germline engineering, nor is it worth the investment of research money. (shrink)

Anna Smajdor and Joona Räsänen argue that we have good reason to classify pregnancy as a disease. They discuss five accounts of disease and argue that each account either implies that pregnancy is a disease or, if it does not, it faces problems. This strategy allows Smajdor and Räsänen to avoid articulating their own account of disease. Consequently, they cannot establish that pregnancy is a disease, only that plausible accounts of disease suggest this. Some readers will dismiss Smajdor and Räsänen’s (...) claims as counterintuitive. By analogy, if a mathematical proof concludes ‘2+2=5’, readers will know—without investigation—that an error occurred. Rather than dismiss Smajdor and Räsänen’s work, however, the easiest way to undermine their argument is to describe at least one plausible account of disease that (i) excludes pregnancy and (ii) avoids the problems they raise for it. This is our strategy. We focus on dysfunction accounts of disease. After outlining Smajdor and Räsänen’s main arguments against dysfunction accounts, we explain why pregnancy is not a disease on these accounts. Next, we defend dysfunction accounts against the three problems that Smajdor and Räsänen raise. If successful, then contra Smajdor and Räsänen, at least one plausible account of disease does not imply that pregnancy is a disease. We suspect that defenders of other accounts can respond similarly. Yet, we note that insofar as dysfunction accounts align with the commonsense intuition that pregnancy is not a disease, this, all else being equal, seems like a point in their favour. (shrink)

This paper focuses on the causation of diseases, particularly on the idea of a “genetic cause” taking Alzheimer’s Disease (AD) as an example. We (1) provide some historical information and a synopsis of the current knowledge on the etiology and pathogenesis of AD, (2) analyse some conceptual problems related to the notion of “genetic disease” (3) elaborate on the alleged (genetic) cause of AD, and (4) place the discussion on the cause of AD in a broader philosophical context, paying attention (...) to a constructivist perspective, the notions of causal connection and causal selection, and to some practical and normative consequences of our analysis. We conclude (a) that AD is not a specific disease entity with one specific cause, (b) that the idea of a single (sufficient) cause can still function as a heuristic tool in AD research and practice, and (c) that a “belief” in causation can go together with the notions of multicausality and probability. (shrink)

A central tenet of medical ethics holds that it is permissible to perform a medical intervention on a competent individual only if that individual has given informed consent to the intervention. However, in some circumstances it is tempting to say that the moral reason to obtain informed consent prior to administering a medical intervention is outweighed. For example, if an individual’s refusal to undergo a medical intervention would lead to the transmission of a dangerous infectious disease to other members of (...) the community, one might claim that it would be morally permissible to administer the intervention even in the absence of consent. Indeed, as we shall discuss below, there are a number of examples of public health authorities implementing compulsory or coercive measures for the purposes of infectious disease control (IDC). The plausibility of the thought that non-consensual medical interventions might be justified when performed for the purpose of IDC raises the question of whether such interventions might permissibly be used to realize other public goods. In this article we focus on one possibility: whether it could be permissible to non-consensually impose certain interventions that alter brain states or processes through chemical or physical means on serious criminal offenders. We shall suggest that some such interventions might be permissible if they safely and effectively serve to facilitate the offender’s rehabilitation and thereby prevent criminal recidivism. (shrink)

In considering the debate about the meaning of ‘disease’, the positions are generally presented as falling into two categories: naturalist, e.g., Boorse, and normativist, e.g., Engelhardt and many others. This division is too coarse, and obscures much of what is going on in this debate. I therefore propose that accounts of the meaning of ‘disease’ be assessed according to Hare’s (1997) taxonomy of evaluative terms. Such an analysis will allow us to better understand both individual positions and their inter-relationships. Most (...) importantly, it will show that it is unlikely that there is a single unique disease-concept at issue. Rather, different authors are, for the most part, considering different concepts. (shrink)

In The Biopsychosocial Model of Health and Disease, Derek Bolton and Grant Gillett argue that a defensible updated version of the biopsychosocial model requires a metaphysically adequate account of disease causation that can accommodate biological, psychological, and social factors. This present paper offers a philosophical critique of their account of biopsychosocial causation. I argue that their account relies on claims about the normativity and the semantic content of biological information that are metaphysically contentious. Moreover, I suggest that these claims are (...) unnecessary for a defence of biopsychosocial causation, as the roles of multiple and diverse factors in disease causation can be readily accommodated by a more widely accepted and less metaphysically contentious account of causation. I then raise the more general concern that they are misdiagnosing the problem with the traditional version of the biopsychosocial model. The challenge when developing an explanatorily valuable version of the biopsychosocial model, I argue, is not so much providing an adequate account of biopsychosocial causation, but providing an adequate account of causal selection. Finally, I consider how this problem may be solved to arrive at a more explanatorily valuable and clinically useful version of the biopsychosocial model. (shrink)

This article uses Marc Lewis’ work as a springboard to discuss the socio-political context of the brain disease model of addiction. The claim that promotion of the BDMA is the only way the general public can be persuaded to withhold blame and punishment from addicts is critically examined. After a discussion of public understandings of the disease concept of addiction, it is pointed out that it is possible to develop a scientific account of addiction which is neither a disease nor (...) a moral model but which the public could understand. Evidence is reviewed to suggest that public acceptance of the disease concept is largely lip-service and that the claim the BDMA removes stigma among the public and professionals is unsupported by evidence. Further, there is good evidence that biogenetic explanations of mental/behavioural disorders in general have been counterproductive in the attempt to ally stigma. A model of addiction as a disorder of choice may attract special problems in public-facing communications and risks being misunderstood. However, ways of presenting this model to the public are suggested that may avoid such risks. Lastly, the claim that the BDMA is the only way of ensuring access to treatment and of maintaining research funding for addiction is disputed and a way in which these benefits can be retained under a disorder-of-choice model proposed. The article concludes by enthusiastically endorsing Lewis’ call for a third stage in the governing image of addiction. (shrink)

Free will has been the object of debate in the context of addiction given that addiction could compromise an individual’s ability to choose freely between alternative courses of action. Proponents of the brain-disease model of addiction have argued that a neuroscience perspective on addiction reduces the attribution of free will because it relocates the cause of the disorder to the brain rather than to the person, thereby diminishing the blame attributed to the person with an addiction. Others have worried that (...) such displacement of free will attribution would make the person with a drug addiction less responsible. Using the paradigmatic literature on the seductive allure of neuroscience explanations, we tested whether neuroscience information diminishes attributions of free will in the context of addiction and whether respondent characteristics influence these attributions and modulate the effect of neuroscience information. We performed a large-scale, web-based experiment with 2,378 German participants to explore how attributions of free will in the context of addiction to either alcohol or cocaine are affected by: (1) a text with a neurobiological explanation of addiction, (2) a neuroimage showing effects of addiction on the brain, and (3) a combination of a text and a neuroimage, in comparison to a control group that received no information. Belief in free will was measured using the FAD-Plus scale and was, subsequent to factor analysis, separated into two factors: responsibility and volition. The investigated respondent characteristics included gender, age, education, self-reported knowledge of neuroscience, substance-use disorder (SUD), and having a friend with SUD. We found that attributions of volition (in the cocaine-subsample) were reduced in the text and neuroimage-treatment compared to the control group. However, respondent characteristics such as education and self-reported knowledge of neuroscience were associated with lower attributions of responsibility for both substances, and education was associated with lower attribution of volition for the alcohol sub-sample. Interaction analyses showed that knowledge of neuroscience was found to generally decrease attribution of responsibility. Further research on attribution of free will should consider the effects of context and respondent characteristics, which appeared surprisingly larger than those induced by experimental treatments. (shrink)

The concept of disease has been the subject ofa vast, vivid and versatile debate. Categoriessuch as ``realist'', ``nominalist'', ``ontologist'',``physiologist'', ``normativist'' and``descriptivist'' have been applied to classifydisease concepts. These categories refer tounderlying theoretical frameworks of thedebate. The objective of this review is toanalyse these frameworks. It is argued that thecategories applied in the debate refer toprofound philosophical issues, and that thecomplexity of the debate reflects thecomplexity of the concept itself: disease is acomplex concept, and does not easily lenditself to definition.

Three negative affective dispositions—anger, anxiety, and depression—are hypothesized to increase physical disease risk and have been the subject of epidemiological studies. However, the overlap among the major negative affective dispositions, and the superordinate construct of trait negative affectivity are only beginning to be tested. Presented here is a narrative review of recent prospective studies that simultaneously tested anger, anxiety, depression, and trait NA as risk factors for cardiac outcomes. Anxiety and depression emerged as independent risk factors for premature heart disease (...) in population studies of persons nominally healthy at baseline, and for recurrence/mortality among patients with existing heart disease. General trait NA also was a cardiac risk factor in population samples. (shrink)

While classifications of mental disorders have existed for over one hundred years, it still remains unspecified what terms such as 'mental disorder', 'disease' and 'illness' might actually denote. While ontologies have been called in aid to address this shortfall since the GALEN project of the early 1990s, most attempts thus far have sought to provide a formal description of the structure of some pre-existing terminology or classification, rather than of the corresponding structures and processes on the side of the patient. (...) We here present a view of mental disease that is based on ontological realism and which follows the principles embodied in Basic Formal Ontology and in the application of BFO in the Ontology of General Medical Science. We analyzed statements about what counts as a mental disease provided in the research agenda for the DSM-V, and in Pies' model. The results were used to assess whether the representational units of BFO and OGMS were adequate as foundations for a formal representation of the entities in reality that these statements attempt to describe. We then analyzed the representational units specific to mental disease and provided corresponding definitions. Our key contributions lie in the identification of confusions and conflations in the existing terminology of mental disease and in providing what we believe is a framework for the sort of clear and unambiguous reference to entities on the side of the patient that is needed in order to avoid these confusions in the future. (shrink)

In the Global Burden of Disease study, disease burden is measured as disability-adjusted life years (DALYs). The paramount assumption of the DALY is that it makes sense to aggregate years lived with disability (YLDs) and years of life lost (YLLs). However, this is not smooth sailing. Whereas morbidity (YLD) is something thathappens toan individual, loss of life itself (YLL) occurs when that individual’s life has ended. YLLs quantify something that involves no experience and does not take place among living individuals. (...) This casts doubt on whether the YLL is an individual burden at all. If not, then YLDs and YLLs are incommensurable. There are at least three responses to this problem, only one of which is tenable: a counterfactual account of harm. Taking this strategy necessitates a re-examination of how we count YLLs, particularly at the beginning of life. (shrink)

Social media applications such as Twitter, YouTube and Facebook have attained huge popularity, with more than three billion people and organizations predicted to have a social networking account by 2015. Social media offers a rapid avenue of communication with the public and has potential benefits for communicable disease control and surveillance. However, its application in everyday public health practice raises a number of important issues around confidentiality and autonomy. We report here a case from local level health protection where the (...) friend of an individual with meningococcal septicaemia used a social networking site to notify potential contacts. (shrink)

What is the relationship between harm and disease? Discussions of the relationship between harm and disease typically suffer from two shortcomings. First, they offer relatively little analysis of the concept of harm itself, focusing instead on examples of clear cases of harm such as death and dismemberment. This makes it difficult to evaluate such accounts in borderline cases, where the putative harms are less severe. Second, they assume that harm-based accounts of disease must be understood normatively rather than naturalistically, in (...) the sense that they are inherently value based. This makes such accounts vulnerable to more general objections of normative accounts of disease. Here we draw on an influential account of harm from the philosophy of law to develop a harm-based account of disease that overcomes both of these shortcomings. (shrink)

Current COVID-19 pandemic and previous SARS/MERS outbreaks have caused a series of major crises to global public health. We must integrate the large and exponentially growing amount of heterogeneous coronavirus data to better understand coronaviruses and associated disease mechanisms, in the interest of developing effective and safe vaccines and drugs. Ontologies have emerged to play an important role in standard knowledge and data representation, integration, sharing, and analysis. We have initiated the development of the community-based Coronavirus Infectious Disease Ontology (CIDO). (...) As an Open Biomedical Ontology (OBO) library ontology, CIDO is an open source and interoperable with other existing OBO ontologies. In this article, the general architecture and the design patterns of the CIDO are introduced, CIDO representation of coronaviruses, phenotypes, anti-coronavirus drugs and medical devices (e.g. ventilators) are illustrated, and an application of CIDO implemented to identify repurposable drug candidates for effective and safe COVID-19 treatment is presented. (shrink)

We situate the well-trodden debate about defining health and disease within the project of a metaphysics of science and its aim to work with and contribute to science. We make use of Guay and Pradeu’s ‘metaphysical box’ to reframe this debate, showing what is at stake in recent attempts to move beyond it, revealing unforeseen points of agreement and disagreement among new and old positions, and producing new questions that may lead to progress. We then discuss the implications of the (...) two-way benefits between medicine and philosophy when the latter is driven and constrained by medical science. (shrink)

People struggling with addiction are neither powerless over their addiction, nor are they fully in control. Lewis vigorously objects to the brain disease model of addiction, because it makes people lose belief in their self-efficacy, and hence hinders their recovery. Although he acknowledges that there is a compulsive state in addiction, he objects to the claim that this compulsion is carved in stone. Lewis argues that the BDMA underestimates the agency of addicted people, and hence hinder their recovery. Lewis’s work (...) offers us a very much to be welcomed neurobiology of recovery. It offers addicted people a hopeful and respectful narrative for their recovery that treats them as agents rather than as damaged brains. However, I argue that overestimating people’s agency can also result in people losing belief in their self-efficacy. Lewis’s strong focus on the agency of addicted people might not match their experiences of struggle, hence reinforcing their feelings of guilt when they fail to control their use. I propose to replace the notion of addiction as a disease with a notion of a disease-like stage in addiction. I call this stage the duress stage in addiction, in which the addictive behaviour is largely impervious to the agent’s values and to available techniques of self-control. However, the agent can overcome this stage by developing new techniques of self-control, by building on their self-concept and belief in self-efficacy, by changing their environments and habits, and by engaging in projects that are meaningful to the agent. (shrink)

The new Coronavirus has been declared a global pandemic by the World Health Organization. The sudden outbreak of this new virus and the measure of lockdown adopted to contain the epidemic have profoundly changed the lifestyles of the Italian population, with an impact on people’s quality of life and on their social relationships. In particular, due to forced and prolonged cohabitation, couples may be subject to specific stressors during the epidemic. In addition, living with a chronic health condition may add (...) specific challenges to the ones posed by the epidemic itself. The present cross-sectional study aimed to provide a picture of the challenges as well as the resources for both individual and relational well-being of Italian individuals in a couple relationship, with a specific attention to the comparison between individuals living with and without a chronic disease. Results showed that people with a chronic disease had lower psychological well-being and more fears and worries about the COVID-19. People with a chronic disease perceived fewer resources than healthy people. Moreover, the challenges are shown to be associated with less psychological well-being and high pessimism about the future. Instead individual, relational, and social resources play a protective role during the pandemic for both healthy and chronically ill people. (shrink)

This paper extends previous arguments against the assumption that the study of variation at the molecular level was instigated with a view to solving an internal conflict between the balance and classical schools of population genetics. It does so by focusing on the intersection of basic research in protein chemistry and the molecular approach to disease with the enactment of global health campaigns during the Cold War period. The paper connects advances in research on protein structure and function as reflected (...) in Christian Anfinsen’s The molecular basis of evolution, with a political reading of Emilé Zuckerkandl and Linus Pauling’s identification of molecular disease and evolution. Beyond atomic fallout, these advances constituted a rationale for the promotion of genetic surveys of human populations in the Third World, in connection with international health programs. Light is shed not only on the experimental roots of the molecular challenge but on the broader geopolitical context where the rising role of biomedicine and public health had an impact on evolutionary biology. (shrink)

Competing contemporary theories of health, the reductionist and the relativist of an objective goal, can be classified as objectivist theories. The ultimate goal of all living things is life, the standard by which states or functions can be measured, and thereby defined as healthy or disease states. While disease can be classified in a taxonomy of biological dysfunctions without remainder, health is a richer concept that includes not only biological values, but also moral values, both leading to the ultimate goal (...) of human flourishing. (shrink)

Biology is the study of life, psychology is the study of mind, and medicine is the investigation of the causes and treatments of disease. This chapter describes how the central concepts of life, mind, and disease have undergone fundamental changes in the past 150 years or so. There has been a progression from theological, to qualitative, to mechanistic explanations of the nature of life, mind and disease. This progression has involved both theoretical change, as new theories with greater explanatory power (...) replaced older ones, and emotional change as the new theories brought reorientation of attitudes toward the nature of life, mind, and disease. After a brief comparison of theological, qualitative, and mechanistic explanations, I will describe how shifts from one kind of explanation to another have carried with them dramatic kinds of conceptual change in the key concepts in the life sciences. Three generalizations follow about the nature of conceptual change in the history of science: there has been a shift from conceptualizations in terms of simple properties to ones in terms of complex relations; conceptual change is theory change; and conceptual change is often emotional as well as cognitive. The contention that historical development proceeds in three stages originated with the nineteenth-century French philosophers, Auguste Comte, who claimed that November 9, 2006 human intellectual development progresses from a theological to a “metaphysical” stage to a “positive” (scientific) stage (Comte, 1988). The stages I have in mind are different from Comte’s, so let me say what they involve. By the theological stage I mean systems of thought in which the primary explanatory entities are supernatural ones beyond the reach of science, such as gods, devils, angels, spirits, and souls. For example, the concept of fire was initially theological, as in the Greek myth of Prometheus receiving fire from the gods.. (shrink)

The proposal of the new criteria for the diagnosis of Alzheimer’s disease based on biomarker data is making possible a diagnosis of AD at the mild cognitive impairment or predementia/prodromal– stage. Given the present lack of effective treatments for AD, the opportunity for the individuals to personally take relevant decisions and plan for their future before and if cognitive deterioration occurs is one the main advantages of an early diagnosis. Advance directives are largely seen as an effective tool for planning (...) medical care in the event the subject becomes incompetent. Nevertheless, their value has been questioned with regard to people with dementia by scholars who refer to the arguments of personal identity and of patient’s changing interests before and after the onset of dementia. In this paper, I discuss the value of advance directives in Alzheimer’s disease and other kind of dementia. Despite critics, I argue that advance directives are especially advisable in dementia and provide reasons in favor of their promotion at an early stage of the disease as a valuable tool to respect patients’ values and preferences on medical treatment, including participation in research and end of life decisions. I mainly support advance directives that include both decisions regarding health care and the appointment of an attorney in fact. I conclude that patients with AD at a prodromal or early stage should be offered the opportunity to execute an advance directive, and that not to honor a demented individual’s directive would be an unacceptable form of discrimination towards those patients. (shrink)

Advance patient directives are various forms of anticipatory medical directives made by competent individuals for the eventuality of future incompetence. They are therefore appropriate instruments for competent patients in the early stage of Alzheimer's disease to document their self-determined will in the advanced stages of dementia. Theoretical objections have been expressed against the concept of advance patient directives (problems of authenticity and identity) which, however, cannot negate the fundamental moral authority of advance patient directives. Therefore, patients, family members, and physicians (...) should make use of the appropriate form of advance directive as part of common treatment and care planning. Advance directives, when utilized intelligently, represent appropriate instruments for shared decision-making by patient, family members and physician. They should be utilized to a greater extent, particularly for the treatment planning of demented patients. (shrink)

This paper analyses self-declared aims and representation of dementia patient organizations and advocacy groups in relation to two recent upheavals: the critique of social stigmatization and biomedical research focusing on prediction. Based on twenty-six semi-structured interviews conducted in 2016–2017 with members, service recipients, and board representatives of POs in Germany and Israel, a comparative analysis was conducted, based on a grounded theory approach, to detect emerging topics within and across the POs and across national contexts. We identified a heterogeneous landscape, (...) with the only Israeli PO focusing strongly on caretakers, whereas in Germany several POs claim to represent this patient collective. Shared aims of all POs were fighting social stigma, balancing the loss of patients’ individual autonomy, and the well-being of caretakers. By highlighting the emergence of new groups of dementia self-advocacy against the more traditional advocacy by others, this study highlights how advocacy and representation in the context of AD are embedded in the discursive context of stigmatization and revised disease conception. Future developments in early diagnosis and prediction of dementia, with more affected people likely to conduct dementia self-advocacy, might challenge existing representation structures even more. (shrink)

In recent years, an increasing number of medical books and papers attempting to analyse the concepts of health and disease from the perspective of evolutionary biology have been published.This paper introduces the evolutionary approach to health and disease in an attempt to illuminate the premisses and the framework of Darwinian medicine. My primary aim is to analyse to what extent evolutionary theory provides for a biological definition of the concept of disease. This analysis reveals some important differences between functional explanations (...) in the field of evolutionary biology and functional explanations in the field of medicine. Moreover, I shall argue that the biological functions relevant to the health of an organism cannot be determined on the basis of evolutionary theory. Accordingly, it seems that Darwinian medicine does not provide for the definition of a biological concept of disease. Still,Darwinian medicine may suggest why we are susceptible to certain diseases; it might also prove a suggestive heuristic on the basis of which new hypotheses concerning relevant treatments of various diseases might be advanced. (shrink)

The history of the research on peptic ulcer disease is characterized by a premature abandonment of the bacterial hypothesis, which subsequently had its comeback, leading to the discovery of Helicobacter pylori – the major cause of the disease. In this paper we examine the received view on this case, according to which the primary reason for the abandonment of the bacterial hypothesis in the mid-twentieth century was a large-scale study by a prominent gastroenterologist Palmer, which suggested no bacteria could be (...) found in the human stomach. To this end, we employ the methodof digital textual analysis and study the literature on the etiology of PUD published in the decade prior to Palmer’s article. Our findings suggest that the bacterial hypothesis had already been abandoned before the publication of Palmer’s paper, which challenges the widely held view that his study played a crucial role in the development of this episode. In view of this result, we argue that the PUD case does not illustrate harmful effects of a high degree of information flow, as it has frequently been claimed in the literature on network epistemology. Moreover, we argue that alternative examples of harmful effects of a high degree of information flow may be hard to find in the history of science. (shrink)

Biomarker-based predictive tests for subjectively asymptomatic Alzheimer’s disease (AD) are utilized in research today. Novel applications of artificial intelligence (AI) promise to predict the onset of AD several years in advance without determining biomarker thresholds. Until now, little attention has been paid to the new ethical challenges that AI brings to the early diagnosis in asymptomatic individuals, beyond contributing to research purposes, when we still lack adequate treatment. The aim of this paper is to explore the ethical arguments put forward (...) for AI aided AD prediction in subjectively asymptomatic individuals and their ethical implications. The ethical assessment is based on a systematic literature search. Thematic analysis was conducted inductively of 18 included publications. The ethical framework includes the principles of autonomy, beneficence, non-maleficence, and justice. Reasons for offering predictive tests to asymptomatic individuals are the right to know, a positive balance of the risk-benefit assessment, and the opportunity for future planning. Reasons against are the lack of disease modifying treatment, the accuracy and explicability of AI aided prediction, the right not to know, and threats to social rights. We conclude that there are serious ethical concerns in offering early diagnosis to asymptomatic individuals and the issues raised by the application of AI add to the already known issues. Nevertheless, pre-symptomatic testing should only be offered on request to avoid inflicted harm. We recommend developing training for physicians in communicating AI aided prediction. (shrink)

This article isolates ten prepositions, which constitute the undercurrent paradigm of contemporary discourse of health disease and medicine. Discussion of the interrelationship between those prepositions leads to a systematic refutation of this paradigm. An alternative set is being forwarded. The key notions of the existing paradigm are that health is the natural condition of humankind and that disease is a deviance from that nature. Natural things are harmonious and healthy while human made artifacts are coercive interference with natural balance. It (...) is suggested that the current paradigm is influenced by the world of finances and by instrumental reason. The alternative model suggests that human nature cannot be delineated. Humans fashion their own selves and nature by artificial means, medicine among them. The article discusses the implications of the paradigm adapted in various scholarly and popular debates such as the use of sex hormones for contraception, the care of the elderly, holistic medicine and distributive justice in health care. Medicine is not an isolated or a privileged realm. There is no unique entitlement to health care. It is always part of a broader agenda of social values and institutions. A open view of human societies, values and practices as they are situated within concrete material conditions is the platform required for an integrative and creative discourse of health care. (shrink)

This article describes compassion as perceived within the relationship between nurses and older persons with a chronic disease. The aim of the study is to understand the benefit of compassion for nursing practice within the context of long-term care. The design of the study involves a qualitative analysis of in-depth interviews with nurses and patients in three different care-settings. Results show the nature of compassion in seven dimensions: attentiveness, listening, confronting, involvement, helping, presence and understanding. Analysis of the data also (...) shows in what way opinions of participants relate to issues raised in a previous literature study, for example the difference between pity and compassion. The conclusion states that compassion is a valuable process which motivates patients as well as nurses to cooperate in achieving relevant outcomes of care. The discussion involves some methodological issues. For one thing, further confirmation of the dimensions found is recommended. (shrink)

Advances in neuromodulation and an improved understanding of the anatomy and circuitry of psychopathology have led to a resurgence of interest in surgery for psychiatric disease. Clinical trials exploring deep brain stimulation (DBS), a focally targeted, adjustable and reversible form of neurosurgery, are being developed to address the use of this technology in highly selected patient populations. Psychiatric patients deemed eligible for surgical intervention, such as DBS, typically meet stringent inclusion criteria, including demonstrated severity, chronicity and a failure of conventional (...) therapy. Although a humanitarian device exemption by the US Food and Drug Administration exists for its use in obsessive-compulsive disorder, DBS remains a largely experimental treatment in the psychiatric context, with its use currently limited to clinical trials and investigative studies. The combination of a patient population at the limits of conventional therapy and a novel technology in a new indication poses interesting challenges to the informed consent process as it relates to clinical trial enrollment. These challenges can be divided into those that relate to the patient, their disease and the technology, with each illustrating how traditional conceptualisations of research consent may be inadequate in the surgical psychiatry context. With specific reference to risk analysis, patient autonomy, voluntariness and the duty of the clinician-researcher, this paper will discuss the unique challenges that clinical trials of surgery for refractory psychiatric disease present to the consent process. Recommendations are also made for an ethical approach to clinical trial consent acquisition in this unique patient population. (shrink)

The leading accounts of the ethics of proxy decision making implicitly draw on internalist conceptions of the philosophy of mind, or so this essay tries to demonstrate. Using the views of Ronald Dworkin as its jumping‐off point, the essay argues that accepting the sort of externalism associated with writers such as Putnam and Burge would alter Dworkin's conclusions concerning how we should respond to the current or precedent decisions of people suffering from dementia. Building on the views of Agnieszka Jawarska, (...) it argues that accepting “active” externalism à la Clark and Chambers would provide currently competent people with new resources for establishing the authority of their present values over inconsistent values they might come to entertain should they become demented. (shrink)

Concerns about the possibility of a sharp rise in the prevalence of Alzheimer’s disease in Western nations have led to both the significant deployment of resources and the development of national research and healthcare plans. Although often focused on treatment, substantial efforts have also been dedicated toward preventing or delaying AD onset. As a result, recent technological and biomedical advances have greatly improved the understanding of AD pathophysiology. While some new tests can assess only risk ), some tests for certain (...) biomarkers (e.g., amyloid beta accumulation in the brain detected via positron... (shrink)

The globalization in business and tourism becomes crucial more and more for the economical sustainability of local communities. In the presence of an epidemic outbreak, there must be such a decision on the policy by the host community as whether to accept visitors or not, the number of acceptable visitors, or the condition for acceptable visitors. Making use of an SIRI type of mathematical model, we consider the influence of visitors on the spread of a reinfectious disease in a community, (...) especially assuming that a certain proportion of accepted visitors are immune. The reinfectivity of disease here means that the immunity gained by either vaccination or recovery is imperfect. With the mathematical results obtained by our analysis on the model for such an epidemic dynamics of resident and visitor populations, we find that the acceptance of visitors could have a significant influence on the disease’s endemicity in the community, either suppressive or supportive. (shrink)

Healthcare workers carry a substantial risk of harm from infectious disease, particularly, but not exclusively, during outbreaks. More can be done by healthcare institutions to identify risks, quantify the current burden of preventable infectious disease amongst HCWs and identify opportunities for prevention. We suggest that institutional obligations should be clarified with respect to the mitigation of infectious disease risks to staff, and question the duty of HCWs to care while healthcare institutions persist with a reactive rather than proactive attitude to (...) infectious disease threats. (shrink)

BackgroundMore than 15% of Chinese respondents reported somatic symptoms in the last week of January 2020. Promoting resilience is a possible target in crisis intervention that can alleviate somatization.ObjectivesThis study aims to investigate the relationship between resilience and somatization, as well as the underlying possible mediating and moderating mechanism, in a large sample of Chinese participants receiving a crisis intervention during the coronavirus disease 2019 epidemic.MethodsParticipants were invited online to complete demographic information and questionnaires. The Symptom Checklist-90 somatization subscale, 10-item (...) Connor–Davidson resilience scale, and 10-item Perceived Stress Scale were measured.ResultsA total of 2,557 participants were included. Spearman correlation analysis revealed that lower resilience was associated with more somatic symptoms. The conditional process model was proved. The interaction effects between perceived stress and sex predicted somatization.ConclusionResilience is a key predictor of somatization. The mediating effects of perceived stress between resilience and somatization work in the context of sex difference. Sex-specific intervention by enhancing resilience is of implication for alleviating somatization during the coronavirus disease 2019 epidemic. (shrink)

Living things are often plastic during their early development and are moulded by the environment. Many human fetuses have to adapt to a limited supply of nutrients, and in doing so they permanently change their physiology and metabolism. These programmed changes may be the origins of a number of diseases in later life, including coronary heart disease, stroke, diabetes and hypertension.

Objective: To determine under what conditions lay people and health professionals find it acceptable for a physician to breach confidentiality to protect the wife of a patient with a sexually transmitted disease .Methods: In a study in France, breaching confidentiality in 48 scenarios were accepted by 144 lay people, 10 psychologists and 7 physicians. The scenarios were all possible combinations of five factors: severity of the disease ; time taken to discuss this with ; intent to inform the spouse about (...) the disease ; intent to adopt protective behaviours ; and decision to consult an expert in STDs , 2×2×3×2×2. The importance and interactions of each factor were determined, at the group level, by performing analyses of variance and constructing graphs.Results: The concept of breaching confidentiality to protect a wife from her husband’s STD was favoured much more by lay people and psychologists than by physicians . The patient’s stated intentions to protect his wife and to inform her of the disease had the greatest impact on acceptability. A cluster analysis showed groups of lay participants who found breaching confidentiality “always acceptable” , “depending on the many circumstances” , requiring “consultation with an expert” and “never acceptable ”.Conclusions: Most people in France are influenced by situational factors when deciding if a physician should breach confidentiality to protect the spouse of a patient infected with STD. (shrink)

Given the increasing need for solid organ and tissue transplants and the decreasing supply of suitable allographic organs and tissue to meet this need, it is understandable that the hope for successful xenotransplantation has resurfaced in recent years. The biomedical obstacles to xenotransplantation encountered in previous attempts could be mitigated or overcome by developments in immunosuppression and especially by genetic manipulation of organ source animals. In this essay we consider the history of xenotransplantation, discuss the biomedical obstacles to success, explore (...) recent developments in transgenic sourcing of organs and tissues, and analyze the problem of infectious disease resulting from xenotransplantation (xenosis). We then apply a model of risk analysis to these risks. The conclusions of this risk analysis are used in an ethical evaluation of informed consent in xenotransplantation, with an ethical foundation in Kantian autonomy and Levinasian heteronomic alterity. Our conclusion is that individual and collective informed consent to the infectious disease risks of xenotransplantation requires an open, participatory and dialogical public policy process not yet seen in the United States and Europe. Until that process is created, we propose caution in xenotransplantation in general and a postponement of solid organ xenotransplants in particular. (shrink)

Mnoge biološke funkcije dopuštaju stupnjevanje. Na primjer, lučenje određenog hormona u organizmu može biti na višoj ili nižoj razini, u usporedbi s istim organizmom drugom prilikom ili u usporedbi s drugim organizmima. Koje razine funkcioniranja predstavljaju slučajeve disfunkcije; gdje da povučemo crtu? To je kvantitativni problem za teorije disfunkcije i bolesti. Cilj mi je braniti verziju bioloških teorija disfunkcije kako bih se uhvatio u koštac s ovim problemom. Međutim, također ću dopustiti da evaluativna razmatranja uđu u teoriju bolesti. Moj argument (...) se temelji na razlikovanju između biološke i kliničke perspektive. Prema mom mišljenju, bolest je ograničena na slučajeve koji spadaju u granice bioloških disfunkcija. Odgovor na kvantitativni problem ne zahtijeva proizvoljne odluke ili društveno vrijednosne sudove. Stoga se zalažem za nearbitrarnu metodu koja se temelji na činjenicama kako bi se riješio kvantitativni problem. Ipak, nisu sve biološke disfunkcije instance bolesti. Dodavanje kliničke perspektive omogućuje nam da spriječimo potencijalnu preveliku uključenost biološke perspektive, zato što postavlja dodatna ograničenja za određivanje granica bolesti. (shrink)

Background: Treating medication-refractory freezing of gait in Parkinson’s disease remains challenging despite several trials reporting improvements in motor symptoms using subthalamic nucleus or globus pallidus internus deep brain stimulation. Pedunculopontine nucleus region DBS has been used for medication-refractory FoG, with mixed findings. FoG, as a paroxysmal phenomenon, provides an ideal framework for the possibility of closed-loop DBS.Methods: In this clinical trial, five subjects with medication-refractory FoG underwent bilateral GPi DBS implantation to address levodopa-responsive PD symptoms with open-loop stimulation. Additionally, PPN (...) DBS leads were implanted for CL-DBS to treat FoG. The primary outcome of the study was a 40% improvement in medication-refractory FoG in 60% of subjects at 6 months when “on” PPN CL-DBS. Secondary outcomes included device feasibility to gauge the recruitment potential of this four-lead DBS approach for a potentially larger clinical trial. Safety was judged based on adverse events and explantation rate.Findings: The feasibility of this approach was demonstrated as we recruited five subjects with both “on” and “off” medication freezing. The safety for this population of patients receiving four DBS leads was suboptimal and associated with a high explantation rate of 40%. The primary clinical outcome in three of the five subjects was achieved at 6 months. However, the group analysis of the primary clinical outcome did not reveal any benefit.Interpretation: This study of a human PPN CL-DBS trial in medication-refractory FoG showed feasibility in recruitment, suboptimal safety, and a heterogeneous clinical effect in FoG outcomes. (shrink)

New dimensions in different ethical scenarios following genetic information require new medical-ethical Action Guides for physician-patient interaction. This paper discusses the ambiguity in moral choice between a “right not to know” and “a duty to know”, regarding parental decisionmaking pro or contra selective abortion following prenatal screening for autosomal dominant polycystic kidney disease (Potter III) and related public policy issues.